Airplot

One of third runway architects Grimshaw's earlier works (photo by Mat Strange)

Even though it hasn't been officially announced, it's been widely reported that architectural firm Grimshaw has won the bid to design the third runway at Heathrow. How much design a strip of tarmac needs I don't know, but presumably there's more to it than my ignorant assumptions suggest.

Grimshaw are, of course, the firm behind such eco-hits as the Eden Project and the firm's chairman Sir Nicholas Grimshaw has something of a reputation for sustainable and environmentally considerate approaches to architecture.

Alison Steadman, Carol Ann Duffy and Richard Briers muck in on the Airplot

Down on the parcel of land Greenpeace has bought on the site of the proposed third Heathrow runway, a new element is being added to the Airplot. Typically for this time of year, it's a bit chilly and a bit muddy, but that makes it perfect for what we've got planned today, which is planting an apple orchard.

With the help of people like actress Alison Steadman, poet laureate Carol Ann Duffy and former Heathrow writer-in-residence Alain de Botton, we're planting yet more roots into the land we own on behalf of tens of thousands of people around the world, a right spanner in the works for advocates of bigger airports at Heathrow and elsewhere.

Impersonator extraordinaire, Airplotter and all-round funny man Alistair McGowan is shortly embarking on a nationwide tour of Britain, and he's going to great lengths to make it as green as possible. Alistair is a long-time Greenpeace supporter, and has committed himself to playing a key role in opposing aviation expansion by jointly buying the Airplot with us - the piece of land we acquired slap bang in the middle of the proposed new third runway development site at Heathrow Airport.